Zip backpack set includes a double zipper pouch for storing necessities, an insulated zip bag to help keep liquids warm or cool for up to 4 hours, a padded changing mat, an interior key clip to keep your keys handy, 5 exterior pockets and 8 interior pockets of various sizes for easy organisation and a detachable chest strap for extra comfort on longer trips. Interior zip pocket is PVC lined to be waterproof for wet wipes or soiled clothes. The backpack's fabrication is highly water repellent inside and outside. The backside of backpack includes 2 zip quick-reach pockets for stashing cell phone and necessities. Being a parent, doesn't mean you have to sacrifice style to gain function.